body {
    position: relative;
}

.title_news {
    width: 100%;
    height: 500px;
    background-color: rgba(0, 0, 0, 0.5);
    color: #fff;
    font-size: 48px;
    font-weight: 900;
    font-family: '宋体';
    display: flex;
    justify-content: center;
    align-items: center;
}

.title_news>img {
    width: 60px;
    height: 30px;
    position: absolute;
    left: 80px;
    top: 20px;
}

.banner_news {
    width: 100%;
    height: 500px;
    background: url(../img/about_banner.jpg) no-repeat;
    background-size: cover;
    /* background-position: 50% 25%; */
    position: absolute;
    top: 0;
    left: 0;
    z-index: -1;
}

.introduce {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.title_introduce {
    margin-top: 80px;
    margin-bottom: 50px;
    font-size: 36px;
    line-height: 50px;
    font-weight: 700;
    color: #000;
}

.content_introduce {
    width: 1000px;
    height: 100px;
    font-size: 16px;
}

.img_introduce {
    width: 870px;
    height: 400px;
    margin-top: 20px;
    display: flex;
    justify-content: center;
}

.img_introduce>div {
    width: 290px;
    height: 400px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.img_introduce>div>div {
    width: 390px;
    height: 500px;
    position: absolute;
    background: #ff2242;
    left: -50px;
    top: -50px;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    align-items: center;
    opacity: 0;


}

.img_introduce>div>div:hover {
    opacity: 1;
    scale: 0.8;
    transition: all 0.4s linear;
}


.img_introduce>div>div>span:nth-of-type(1) {
    font-size: 16px;
    margin-top: -50px;
    color: white;
}

.img_introduce>div>div>span:nth-of-type(2) {
    font-size: 30px;
    margin-top: -300px;
    color: white;
}

.img_introduce>div>div>span:nth-of-type(3) {
    width: 50px;
    height: 1px;
    margin-top: -300px;
    background-color: white;
}

.img_introduce>div>div>span:nth-of-type(4) {
    display: inline-block;
    width: 290px;
    line-height: 25px;
    margin-top: -300px;
    font-size: 16px;
    color: white;
}

.img_introduce>div>span:nth-of-type(1) {
    font-size: 16px;
}

.img_introduce>div>span:nth-of-type(2) {
    font-size: 20px;
}

.img_introduce>div:nth-of-type(1) {
    background: url(../img/imgCard1.jpg);
    background-size: cover;
}

.img_introduce>div:nth-of-type(2) {
    background: url(../img/imgCard2.jpg);
    background-size: cover;
}

.img_introduce>div:nth-of-type(3) {
    background: url(../img/imgCard3.jpg);
    background-size: cover;
}

.text_introduce {
    width: 1000px;
    height: 200px;
    margin-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.text_introduce>div {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
}


.text_introduce>div:nth-of-type(2)::before {
    display: inline-block;
    content: '';
    width: 1px;
    height: 130px;
    background: red;
    position: absolute;
    left: -50px;
    top: -10px;
    background: #ccc;
}

.text_introduce>div:nth-of-type(2)::after {
    display: inline-block;
    content: '';
    width: 1px;
    height: 130px;
    background: red;
    position: absolute;
    right: -68px;
    top: -10px;
    background: #ccc;
}

.text_introduce>div>img {
    width: 36px;
    height: 36px;
    margin-bottom: 10px;
}

.text_introduce>div>div:nth-of-type(1) {
    font-size: 20px;
    color: #000;
    font-weight: bold;
    margin-bottom: 10px;
    position: relative;
}

.text_introduce>div>div:nth-of-type(2) {
    font-size: 16px;
    color: #666;
}

.environment_introduce {
    width: 1000px;
    height: 800px;
    /* border: 1px solid red; */
    display: flex;
    flex-direction: column;
    justify-content: space-evenly;
    align-items: center;
}

.environment_introduce>div:nth-of-type(1) {
    font-size: 36px;
    line-height: 50px;
    font-weight: 700;
    color: #000;
}

.environment_introduce>div:nth-of-type(2) {
    width: 500px;
    height: 50px;
    color: #666;
    font-size: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.environment_introduce>div:nth-of-type(3)>div {
    width: 1000px;
    display: flex;
    justify-content: center;
}

.environment_introduce>div>div>img {
    width: 333px;
    height: 298px;
}

.header {
    color: red;
}

.content {
    width: 1000px;
    height: 298px;
    position: relative;
}

.content .items {
    position: absolute;
    left: 0px;
    top: 0px;
    background-color: white;
}

.content .items.show {
    z-index: 1;
}

.headerS {
    color: red;
}

.contentS {
    width: 1000px;
    height: 298px;
    position: relative;
}

.contentS .itemsS {
    position: absolute;
    left: 0px;
    top: 0px;
    background-color: white;
}

.contentS .itemsS.showS {
    z-index: 1;
}

.history__introduce {
    width: 1000px;
    height: 800px;
    /* border: 1px solid red; */
    display: flex;
    flex-direction: column;
    align-items: center;
}

.history__introduce>div:nth-of-type(1) {
    font-size: 36px;
    line-height: 50px;
    font-weight: 700;
    color: #000;
}

.timer {
    width: 1600px;
    border: 1px solid red;
    display: flex;
    justify-content: center;
    align-items: center;
}

.time {
    width: 1800px;
    height: 50px;
    border: 1px solid red;
    margin-top: 40px;
    display: flex;
}

.time>span {
    display: inline-block;
    width: 220px;
    height: 50px;
    line-height: 50px;
    text-align: center;
}